It can be very expensive to try to convince the markets you are right. - Ed Seykota

Charles Faulkner tells a story about Seykota's finely honed intuition when it comes to trading: I am reminded of an experience that Ed Seykota shared with a group. He said that when he looks at a market, that everyone else thinks has exhausted its up trend, that is often when he likes to get in. When I asked him how he made this determination, he said he just puts the chart on the other side of the room and if it looked like it was going up, then he would buy it... Of course this trade was seen through the eyes of someone with deep insight into the market behavior.

Systems don't need to be changed. The trick is for a trader to develop a system with which he is compatible.

Our work is not so much to treat or to cure feelings, as to accept and celebrate them. This is a critical difference.
Fundamentalists figure things out and anticipate change. Trend followers join the trend of the moment. Fundamentalists try to solve their feelings. Trend followers join their feelings and observe them evolve and dis-solve.
The feelings we accept and enjoy rarely interfere with trading.
Trying to treat or cure feelings adds mass.